diff --git a/security/drweb/Makefile b/security/drweb/Makefile
index bd70e2427ec1..104fd55e2109 100644
--- a/security/drweb/Makefile
+++ b/security/drweb/Makefile
@@ -20,7 +20,7 @@ NO_BUILD=	YES
 # Needed for update.pl
 RUN_DEPENDS=    ${LOCALBASE}/lib/perl5/site_perl/${PERL_VER}/${PERL_ARCH}/String/CRC32.pm:${PORTSDIR}/devel/p5-String-CRC32
 
-SCRIPTS_ENV+=   BINOWN=${BINOWN}
+SCRIPTS_ENV+=   BINOWN=${BINOWN} BINGRP=${BINGRP}
 
 DRWEB_PREFIX=	${PREFIX}/${PORTNAME}
 
diff --git a/security/drweb/scripts/post-install b/security/drweb/scripts/post-install
index 359ca82a221b..796b644ce5f3 100644
--- a/security/drweb/scripts/post-install
+++ b/security/drweb/scripts/post-install
@@ -28,6 +28,6 @@ if ! grep -q drweb /etc/crontab; then
   echo ""
 fi
 [ "$ex" = "1" ] && exit 1
-install -dv -m 0775 -o ${BINOWN} -g drweb ${PREFIX}/drweb/run
-install -dv -m 0770 -o ${BINOWN} -g drweb ${PREFIX}/drweb/infected.!!!
+install -dv -m 0755 -o drweb -g ${BINGRP} ${PREFIX}/drweb/run
+install -dv -m 0700 -o drweb -g ${BINGRP} ${PREFIX}/drweb/infected.!!!
 exit 0